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Genetic analysis of endosperm, cytoplasmic and maternal effects for histidine and arginine in indica rice (Oryza sativa L.) across environments

文献类型： 外文期刊

作者： Wu, JG 1 ; Shi, CH 2 ; Zhang, XM 2 ; Katsura, T 2 ;

作者机构： 1.Zhejiang Univ, Coll Agr & Biotechnol, Dept Agron, Hangzhou 310029, Peoples R China

2.Zhejiang Univ, Coll Agr & Biotechnol, Dept Agron, Hangzhou 310029, Peoples R China; Zhejiang Acad Agr Sci, Crop Res & Atom Energy Utilizat Inst, Hangzhou 310021, Peoples R China; Fukui Agr Expt Stn, Fukui 9188215, Japan

关键词： histidine;arginine;genetic effect;genotype x environment interaction effect;genetic correlation;heritability;rice (Oryza saliva L.)

期刊名称：CEREAL RESEARCH COMMUNICATIONS （ 影响因子：0.85； 五年影响因子：1.067 ）

ISSN： 0133-3720

年卷期： 2004 年 32 卷 4 期

页码：

收录情况： SCI

摘要： Genetic main effects and genotype x environment (GE) interaction effects for amino acids histidine (His) and arginine (Arg) in milled rice were analyzed by using the genetic models for quantitative traits of triploid endosperm. Nine cytoplasmic male sterile lines as females and five restoring lines as males were included in an incomplete diallel cross in two environments. Results indicated that the His content and Arg content were mainly controlled by genetic main effects, whereas the ratios of His content to protein content (RHP) or Arg content to protein content (RAP) were mainly affected by GE effects. Since genetic variances involved were found significantly for all traits, the genetic controlling of these two amino acids could be simultaneously affected by the endosperm, cytoplasm and maternal genetic effects. For genetic main effects, the cytoplasm and maternal additive effects for these two amino acids possessed high percentage of 60.2-70.9%, which indicated that selection for these amino acids based on maternal performance could be more effective than that based on single seed. The total narrow-sense heritabilities were high for Arg and RAP with 82.4% and 82.3%, and low for His and RHP with 46.4% and 18.2%, respectively. Since general heritabilities for these two amino acids were found to be much larger than GE interaction heritability, the selection advance for these traits could be expected at different environments. Most cytoplasmic and maternal additive correlations were significantly positive and dominance interaction correlations were also important among all the pairwise traits. Indirect selection of these two amino acids applied in rice breeding was discussed.

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